Intrauterine Temporomandibular Joint Dislocation: Prenatal Sonographic Evaluation

Abstract

Congenital temporomandibular joint (TMJ) diseases are very rare disorders and usually diagnosed in the childhood. Developmental disorders of the TMJ such as hypoplasia, hyperplasia and aplasia of the TMJ compartments are characterized TMJ dysfunction. In the childhood, these patients have a recurrent dislocation, pain and malocclusion. We present a 25-week fetus with unilateral TMJ dislocation with fluid retention in the joint diagnosed by ultrasonography. To the best of our knowledge, this is the first case of the TMJ dislocation diagnosed by ultrasonographic evaluation during the prenatal period.